Loom



May 21, 1929. E. wfs'roNE 1,714,112

LOOM Filed April 27, 1928 5 Sheets-Sheet l //V VF N TOR ATTORNEY May 21, 1929.

v E. W. STONE LOOM Filed April 27, 1928 5 Sheets-Sheet 2 VEN TOR A TTORNE') May 1929 STO I LOOM Filed April 2'7, 1928 5 Sheets-Sheet 3 ATTORNEY E. W. STONE May 21, 1929.

LOOM

Filed April 27, 1928 5 Sheets-Sheet 5 ATTORNEY- Patented May 21, 1929.

. um'rsn STATES- PATENT orrlca.

nnwm w. s'roNa, or LONGKEADOW, xassacnvsa'r'rs, ABBIGNOR 'ro nrennow-mnrroan caarnr commnv, or raoxrsonvrnnn, connnc'rrcu'r, a coaroaarron or massacnusn'rws.

LOOK.

Application am! A ril- 27, 1988. Serial 1%. 273,175.

This invention relates to looms and is more particularly directed to a structure wherein the lay may be' supported and operated atintervals transversely of the loom without at any time interfering w1th the shed forming mechanism.

In recent years there has been a constantly increasing demand for wider and wider fabric, such, forinstance, as carpets and rugs,and this has led to anincrease 1n the loom width and consequently in'the length of the lay from end to end transversel of the loom. With this increased len th 0 the lay a diflicult has arisen in that t e lay itself was ren ered liable to bend or spring backward in the center relative to the ends which were connected to the lay operating means or lay swords, with the result that the fabric produced would have the weft threads curved transversely and consequently cause bulgingpf the fimshed fabric when laid upon the floor.

In some cases, also,-it ma be desirable at times in changing the 'e aracter of the fabric being produced, as, for instance, changing from a light to a heav1er fabr1c, with the same len th of lazy, to prevent the occurrence of the fiackwar spring or buckling of the lay, by introducing between the side swords, lay supporting and operating devices. without at t e same time mterfering with the shed forming mechanism.

Since the width of the fabrics woven by the loom may vary, it has also been desirable that the width of the loom and consequently the length of the breast beam and lay from side to side of the loom be correspondingly varied to suit the character and width of "fabric produced.

One of the objects of the present invention is to provide a'loom structure wherein additional lay supporting and operating means may be utilized between the side swords of the lay without at the same time interfering with the shed forming mecha-- nism, and operating'all .ofthe lay supporting and operatin means from a lay operating shaft which 1s itself disposed frontward of the shed forming mechanism and in non interfering relation therewith..

- In accordance with one aspect of the invention, the 106m. is provided with a front frame extending transversely of the loom and having its ackwall frontward of the shedding mechanism, and associated with the front frame there is provided a lay o eratlng shaft and connections between the operating shaft and the lay, all disposed frontward of the shedding mechanism, 'with the result that atintervals throughoutthe width of the loom'or length of the lay, prov1s1ons may be made 'for supporting and operatingv the lay intermediate the side swords. f

In accordance with another aspect of'the presentmvention, a selfcontained unit is provided, including as part thereof'a portion .of the front frame, an auxiliary lay sword and operating connections between the lay sword and the lay operating shaft, with the result that since these parts are all disposed frontward of the shedding mechanism and in noninterfering relation therewith, the lay may be sup orted and operated at intervals throug out its length.

-.Another advantageous feature resultmg from the selfcontained unit is that the loom itself ma be varied in width as dictated by the widt of the fabric desired by the introduction of one or more of such selfconloom containin the present invention and having some of the parts broken away for illustrative purposes;

Fig. 2 is a fore-and-aft section through a loom, such as that illustrated in Fig. 1, and containing the present invention;

Fig. 3 is a fore-and-aft section through one of the selfcontained lay supporting and operating units;

Fig. 4 is. a perspective view on an enlarged scale of one of the lay supporting and operating units showing some ofthe parts broken away;

Fig. 5 is an enlarged detail in perspective showing a portion of the toggle operating means comprised in each unit;

" Fig. 6 is a plan View with parts broken away showing a number of the lay supportmg and operating units assembled together for determining the width of the loom and consequently of the fabric'that' is to .be

produced and present invention to operate the loom from front frame 16,

a motor rather than from belting to a line shaft, although, so far as the present invention is concerned, this detail is not of controlling importance. However, in the present instance of the invention there is mounted at one side of the loom a motor 5, which is indicated in a general way in Fig. 2, and.

connected to the motor shaft 6 is a pinion 7 which meshes with a gear 8 mounted on a shaft 9 at the side of the lodm. The shaft 9 carries the pinion 10 from which the lay actuating shaft may be conveniently operated, as will further appear.

The shedding mechanism may be of any usual. type and in the present instance of the invention it is indicated by the harness frames 11 and the cords 12,.thelatter of which may carry lingoes 13. The character of the shedding mechanism and its operative means maybe varied in accordance with the character of the fabric to be produced. and may comprise either pattern control harness mechanism or jacquard devices.

The present invention is primarily concerned with the parts of the loom frontward of the shedding mechanism, and in accordance therewith these parts are so positioned with respect to the shedding-mechanism that the lay o )erating means, as will be further explaine is wholly frontward of the shedding mechanism and in non-interferring relation therewith.

- Mounted upon the ties or cross-members 14 frontward ofthe loom sides are the stand-.

ards 15 which may be bolted-t0 the crossmembers 14 or secured thereto in appropri-x ate manner for rigidity of structure.

Mounted on the standards 15, of which there may be'any suitable number, is the the back wall 17 whereof extends transversely of the loom frontward of' the shedding mechanism. The front frame 16 is of novel construction in-that the front portion thereof constitutes in effect the breast beam of the loom, and the frame is preferablyformed as-a box-like structure, having strengthening walls 18 which extend between the front and back walls' of the front frame, as more clearly indicated in The top portion much as the cap or structure should be appropriately sup orted Fig; and constitute rigid reinforein members for. the back wall, which, aswi operating devices.

19 of the front frame has hereinafter appear, takes the'thru'st of the lay mounted thereon the cloth plate 20, the rear edge .portion 21 of which is close to the fell of the cloth being woven, theconstruction being such that as the cloth b is woven, in the usual manner, it .is drawn -frontward overv the guide or s ike roll'22 from which it is guided to the 0 0th take-u mechanism, 'whic maybe of. any usual c iaracter. In order to economize the space occupied by the take-up mechanism-and guide or spike roll 22, the front'frame 16 is inwardly curved, as at 23, as-shown in the present instance of the invention.

' Mounted at'each side of the loom and 'o eratively connected to. the end portions of t e lay are the lay swords 24,, one of which is shown in Fig. 1, and mounted upon the lay swords 24 and extending between them is the lay 25. Each'of the lay swords 24, one at each side of the loom, is mounted for rocking movement -upon a rock shaft 26 whichextends transversely of the loom frontward of the shedding meehanismfand inasand rail.27 of the lay at each side of the loom, each of t e lay swords 24 is carried upwardly, as at 28,- and connected at the ends thereof to the hand rail or reed cap, as indicated in Fi' s. 1 and 2.

To accommodate the upwar ly extending portions 28 of the'end lay swords, the end portions of the front frame at the rear thereof and at each side are carried backwardly, as indicated at'29, Fig. 6, the effect being that the end lay swords having their upward extensions 28 may operate properly without interfering with the contiguous portions of the frontframe. I

As hereinbeforeiindicated, the present invcntion contemplates that the lay may be supported and operated at different points" of its len h between the side lay swords, without interference with the shedding mechanism-and the operatingpart's of the loom, and to this end the present invention provides oneor more selfcontained lay su orting and operatingu'n'its which may e interposed between the side lay swords and operated from the lay operat ng shaft, as will now be explained.

The layrock shaft 26, for the support of the side la swordsextends transversely of the loom t roughout the width' thcreof and where one or more of the selfcontained lay supportin and operating units is interposed between t e side lay swords, the rock shaft 26 also extends through bearings 30 carried by {the standards 15 adjacent eachday operatin unit. I

L ewise extending transversely of the on the standards loom throughout its width is the lay operating shaft 31, and bearings 32 are provided 15 as a support for the-lay operating shaft. Both the rock shaft 26 and t e lay operating shaft 31 are thus mounted inbearings carried by the standards of the lay supporting and operating units and are disposed frontwardly of the. shedding mechanism,as indicated in Fig. 2, with the result that neither shaft interferes with the proper manipulation of the shedding mechanism. The la operating shaft 31 is preferably disposed low the front frame 16 and is revided witha series of crank arms 33 which serve as actuating means for the side lay posed 'thereb'etween.

Each of the units comprises an auxiliary lay sword 34, Figs. land 2, mounted on the lay rock shaft 26, and each of the auxiliary lay swords 34 is connected to thelay 25 pro erably at its under side, as indicated in swords and theauxiliary lay swords dis- Fig. 2.

Each of'the lay swords 24 and 34 has a frontwardly extending projection 35 to which is pivotally connected at 36 a link 37 forming a member of a toggleoperating device. Pivotally connected to the link 37 at 38 is the link 39. constituting a second menu ber of the toggle operating means, and such link 39 is mounted on a fixed center 40 connected to" the back wall 17 of the front frame.

Connected to the two toggle members 37 and 39 is a link 41 associated with a crank 33 on the lay operating shaft 31, the

. construction being such that upon rotative movement being imparted to the lay operating shaft 31, the toggle members" will be given an operating movement to carry the lay forward and backward while the thrust .-of the toggle members is sustained by the fixed center 40 carried by the back wall 17 of the front frame 16. It will he noted from this construction that the entire lay opcratingmeans, both of the side lay swords and the auxiliary'lay swords, are disposed front'walrd of the shedding mechanism and in noninterfering relation therewith, and consequently any number of lay supportin and operating units may e dispose throughout the length of the lay, either to supportthe latter from backward springing movement during the: beat-up or to increase 4 the width of the-loom.

The character of the toggle connection between the side lay swords or the-auxiliary lay swords and operating shaft may be varied, but in order to'insure against any side stress or twisting movement in the togglcs, they are preferably formed as indicated in Fig. 5, wherein'is shown the two toggle members=39 having the fixed center 40 connected to a part of the front frame, and each provided with a bifurcated end portion 42 adapted to be connected to a similarly bifurcated end portion formedon the toggle members 37, as indicated in Fig. 4. The toggle toggle mechanisms employed for, actuation of the lay, the front frame 16 by its strengthening members 18 imparts ri'gidity'to the back wall 17 of. the .front frame and "the operating connections of the toggles with the lay are carried upwardly in close proximity to the beat-up portion of the lay.

From the construction described it will be apparentlhat the present invention provides lay supporting and operating units of selfcontuined character which may be disposed at different points transversely of the lay to thereby prevent. any backward springing movement or bending of the lay during the heat-up, with the COllSQtlllQl'lb production of perfect'cloth. It will also be observed that the entire system constituting each unit for lay support and operation is disposed frontwardly of the shedding mechanism and consequently permits variation in the shedding mechanism without interference therewith, and that the loom itself may be varied in width and the lay prevented from springing backward by the (lllplU VlllQllil of one or more of the lay supporting and operating units. As indicated in Fig. l, the front frame 16 is composed of independent'scetions secured in cnd-io-enil relation and supported by the standards 15 to form a rigid structure. These sections may be economically formed by metal castings, and where the loom is to be varied in width one or more of the front frame sections may be introduced or removed, and preferably eachv of said sections is associated with an auxiliary lay sword and operative connection with the lay operating shaft, with the result that regardless of the width of the loom, the lay will be actuated from the lay operating shaft at intervals throughout its length and .thus any tendency to spring between the ends during weaving will be effectively avoided even though the loom may be of unusual width.

Since the lay receives the full force of the beat-up it is usually desirable that the lay batten be of one continuous piece of.sufiicielnt rigidity to stand the strains, and in 'some cases the front frame may likewise be ating connections with the lay operating shaft will be employed at intervals throughthe loom connected to positively in out the width 0 the loom to overcome any tendency for the lay to spring betweenits ends during weaving. This desirable result is most effectively secured by forming the operating connections between the lay and. lay operating shaft as toggles which act both directions frontward of the shedding mechanism -and combined thrust during beat-up frame casting.

Since the lay actuating transversely of the loom below the back wall 17 ofthe front frame andin a vertical plane frontwa-rd of the back wall, the lower wall of the front frame mitthe operating devices attached to the lay actuating shaft to pass therethrough, and should it be desired .toQgive the lay two beat-up movements on each operation of the lay operating means, give proper throw to the cranks on the crank shaft to first beat-up as the toggles pass their upward center and again beat-up as the toggles are brought downwardly past such center. a

What is claimed is:

to the front shaft 31 extends 1. In a loom, the combination of the layand shedding mechanism, a lay o crating shaft extending transversely of tie loom frontward of the shedding mechanism, a front frame extending transversely of the loom with its back wall frontward of the means at each side of shedding mechanism,

the lay operatingshaft a plurality of toggles disposed at intervals between said having fixed centers supported by the back wall of the front frame, and link' connections wholly in front ofthe shedding mechanism between each toggle and the lay opfor operating the lay,

' crating shaft.

2. In a loom, the combination of the lay and shedding .mechanism, a lay operating shaft extending transversely of the loom in front of the shedding mechanism, a fron frame extending transversely of the loom with its back wall frontward of the shedding mechanism and back of a vertical plane passing through the longitudinal axis of the lay op rating shaft, lay swords at each side of the l'oom andauxiliary lay frontward of the shedding mechanism, an

transmit their 16 is slotted to m it is only necessary to.

' thereof.

and shedding mechanism,

means swords therebetween, toggles operatlvely connected tod by the back wall of the front operating shaft. 4. In a loom,

the combination of the lay and shedding mechanism,

shaft extending transversely of the loom frontward of the shedding mechanism, a front frame having back. front, and bottom walls all frontward of the shedding mechanism, lay swords at each side of the loom and auxiliary lay swords thcrebetwcen assing through the bottom wall of the rent frame, toggles op'erativelyconnected to the lay swords and having fixed centers supported by the back of the front frame frontward of the shedding mechanism, and link connections with each of the toggles and lay operating shaft for supporting and opcrating the lay at intervals transversely the combination of the lay I a lay operating shaft extending transversely of. the loom frontward of the shedding-mechanism, a lay sword at each side of the loom and auxiliary lay swords at intervals, toggles operatively connected to the-lay swords and lay operating shaft, a box-like front frame above the lay operating shaft having its back wall frontward of the shedding mechanism and braced by the side portions of the box-like frame, an toggles supported by the back wallof the front frame above the lay operating shaft.

6. In a loom, the combination of the lay and shedding mechanism, a lay operating shaft extending transversely of the 100m frontward of the shedding mechanism, lay

5. In a loom,

t swords at each side of the loom and auxilia lay swords at intervals between them, togg es operatively connected to the lay swords and lay operating shaft, anda front frame ext-ending transversel of the loom above the lay operating sha t frontward of theshedding mechanism, and a fixed center connection between each'toggle and the back wall of the front frame frontward of the shedding mechanism.

7:111 a loom, the combination of the lay and shedding mechanism, a lay operating shaft extending of the loom and swords at each side intervals between them,

iliary lay swords at toggles o rativelyconnected to the lay swords an lay operating shaft, and a front d fixed center of the transversely of the loom,

'frontward of the shedding mechanism, lay

aux-

a lay operating above the lay-operating connection extending transversely frame extending transversely of the loom shaft frontward; of the shedding mechanism and const tuting a housing for the toggles, and a fixed center between each toggle and the back wall of the front frame rontward of the shedding mechanism.

8. In a loom, the combination of the lay and shedding mechanism, a lay operating shaft extending transversely of the loom frontward of the shedding mechanism, lay

swords at each side of the loom, an auxiliary lay sword disposed between the side lay swords, a front frame having ,its back member frontward of .the shedding mechanism lay operating devices-connected to each of the lay swords and lay operating shaft and having fixed hearings on the back member of the front frame, and bracing elements ex; tending frontwardly from the back member of the front frame to brace the back member against the forward thrust of the lay operating devices.

9. In a loom, the combination of the lay and shedding mechanism, lay swords at each side of the loom, a lay operating shaft extending transversely of the loom frontward of the shedding mechanism and operatively connected to the side swords, a selfcontained lay supporting and operating unit adapted to be inserted between the side lay swords to increase the loom width, and comprising a support, a front frame mounted on the support and having its back member frontward of the shedding mechanism when in place, an auxiliary lay sword, and lay operating devices having a fixed center on the back member of the unit.

10. In a loom, the combination of the lay and shedding mechanism, lay swords at each side of the loom, a lay operating shaft frontward of the shedding mechanism, a divided front frame extending transversely of the loom, and a selfcontained lay supportin and operating unit adapted to be inserted between the divisions of the front frame for varying the width of the loom, and comprising an auxiliary lay sword, a front frame complemental of the divided front frame, and lay operating mechanism for connection with the lay operating shaft.

11. In a loom, the combination of the lay and shedding mechanism, lay swords at each side of the loom, a divided front frame of the loom, a lay operating shaft frontward of the shedding mechanism, and a selfcontained lay supporting and operating unit between the parts of the divided front frame and comprising a section of front frame complemental-to the divided front frame for varying the width of the loom, supports therefor, an auxiliary.

COD-

lay sword, and means for operatively 1 nectiug the auxiliary lay sword to t operating shaft.

12. In a loom, the combination of the la and shedding mechanism, la swords at eac side of the loom, a' divided ront frame permitting the width of the loom to be varied a lay operating shaft, and a selfcontained lay supportingand operatin unit having a: 4

of front frame compIemental of the divided front frame, an auxiliar lay sword, and operating means for connecting the auxiliary lay sword to the lay operating shaft.

13. In a loom, the combination of the lay and sheddin mechanism, lay swords-at each side of the 00m, a divided front frame permitting the width varied, a cloth plate supported .on the divided front frame, a lay supporting and op erating unit section adapted for insertion between the ends of the separated -arts of the front frame when thewidth of t e loom is increased and comprising supporting standards, a section of the front-framecomplemental of the divided front frame supported by said'standards, means for securingthe standards to the loom frame, an auxiliary lay sword, an operating shaft, and toggle means for operatively connecting the auxiliary lay sword to the operating sha when the unit section is added to the loom to increase the width thereof.

14. In a loom for weavin fabrics, the combination of the layand she ding mechanism, a lay rock-shaft, a front transversely of the loom and having a backwardly extending member terminating frontward of the shedding mechanism, a lay op-' erating shaft extending transversely of the loom frontward of the shedding mechanism, and operating connections between the lay and lay operating shaft at intervals throughout the length of the lay and frontward of the shedding mechanism including a member connected to the front frame to transmit the strain of beat-up to the front frame that the lay may not be sprung during weaving.

15. In a loom for weaving fabrics, the combination of the lay and shedding mechanism, a lay operating shaft extending transversely of the loom frontward of the shedding mechanism, a front frame composed of independent and detachable sections secured in end-to-end relation for varying the width of the loom, and lay operating means connected to the lay operating shaft at intervals throughout the length of the lay frontward of the shedding mechanism.

16. In a loom for weaving fabrics, the combination of the lay and shedding mechanism, a lay operating shaft extending transversely of the loom frontward of the shedding mechanism, a front frame composed of independent and detachable sections secured in end-to-end relation for varying the width section of the loom to be frame extending ofithe loom, standards for supporting the crating means connected to .the lay oper-v ating ,shaft at intervals throughout the length of the lay frontward of theshedding mechanism.

- 17. In a loom for weaving fabrics, the com-' at intervals between the ends of the lay all I 4 bination of the lay the lay rock-shaft frontward of the shedding mechanism, toggle connections between the frontward of the shedding mechanism and acting upon the lay at intervals throughout its length to impart lay beat-up movements that the lay-may not be sprung backward between its ends during weavin '18. In a loom forweaving fabrics, the comand shedding mechanism, the la rook sha t,

exten ing. transverselfo the loom above the la operating .shaft ward of the shedding mechanism to impart beat-u at intervals .impulse to the lay throng out ts length that it may not become curved during weaving;

19. In a loom for weaving fabrics, the combination. of the lay and shedding mechanism, a lay rock-shaft, a front to frame having amember extendm back 0 the la and terminating frontwar of the she ding mechanism, a lay operating shaft extending rontward-of the transversely of the loom shedding mechanism above the lay rock-shaft and provided with crank arms at intervals of its length, and a series of toggles connecting the crank arms and lay and having their thrust members connected to the'front frame member.

Intestimony whereof, I have signed my name to this specification.

EDWIN w. STONE. 

